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A kind of sewage treatment equipment and process

A kind of sewage treatment equipment and sewage technology, applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve problems such as unsatisfactory, and achieve the effect of simple equipment and good treatment effect

Active Publication Date: 2017-02-01
江苏广域化学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional treatment method is a combination of coagulation sedimentation and anaerobic decomposition. The sewage treated in this way usually cannot meet the requirements of COD less than 500mg / l and toluene less than 0.5mg / l

Method used

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  • A kind of sewage treatment equipment and process

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Embodiment Construction

[0010] Below in conjunction with accompanying drawing, the specific embodiment of the present invention is described in further detail:

[0011] As shown in the figure: a sewage treatment equipment, including a pre-oxygenation tank 1, a coagulation-settler 2, a regulating tank 3, a UASB anaerobic tank 4, a sedimentation tank 5 and a coagulation-settling tank 9 connected in series, the The sedimentation tank 5 is provided with a pipeline 10 that flows back to the UASB anaerobic tank 4, and a denitrification device is connected in series between the sedimentation tank 5 and the coagulation sedimentation tank 9, and the denitrification device includes anoxic reaction tanks 6 connected in series , high-velocity jet pool 7 and aerobic pool 8, described aerobic pool 8 is provided with the pipeline 10 that backflows to anoxic reaction pool 6, the output end of described settling pool 5 is connected the input end of anoxic reaction pool 6, described The output end of the aerobic tank ...

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Abstract

The invention relates to equipment and process for sewage treatment. The equipment comprises a pre-aeration tank, a coagulation sedimentation device, an adjusting tank, an UASB (upflow anaerobic sludge blanket) anaerobic tank, a sedimentation tank and a coagulation sedimentation tank which are sequentially connected in series, wherein a pipeline returning to the UASB anaerobic tank is arranged in the sedimentation tank; a denitrification device is connected in series between the sedimentation tank and the coagulation sedimentation tank and comprises an anoxic reaction tank, a high-speed jet tank and an aerobic tank which are sequentially connected in series; the aerobic tank is provided with a pipeline returning to the anoxic reaction tank; an output end of the sedimentation tank is connected with an input end of the anoxic reaction tank; and an output end of the aerobic tank is connected with an input end of the coagulation sedimentation tank.

Description

technical field [0001] The invention relates to the field of biochemical sewage treatment, in particular to a sewage treatment equipment and process. Background technique [0002] Chemical wastewater mainly contains pollutants such as acetic acid, acetic acid, and toluene. The treatment technologies for these organic pollutants generally include physical, chemical, and biological methods; depending on the concentration of pollutants, there are differences in the selection of unit technologies. For high-concentration organic matter, due to the concentration threshold of biological inhibition, physical / chemical methods are usually used, such as evaporation / extraction / adsorption / membrane separation / oxidation, etc. The above methods are stable, but the control conditions are relatively high, and the operating cost more expensive. For low-concentration organic matter, biological treatment methods are usually adopted at home and abroad, which are characterized by relatively stabl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 高波涛李卫红谢先平
Owner 江苏广域化学有限公司